>tr|E6BHQ2|E6BHQ2_ECOLX Exodeoxyribonuclease 7 small subunit OS=Escherichia coli MS 85-1 GN=xseB MPKKNEAPASFEKALSELEQIVTRLESGDLPLEEALNEFERGVQLARQGQAKLQQAEQRV QILLSDNEDASLTPFTPDNE